Stop motion for spinning frames



T. G. BULLARD.

STOP MOTION FOR SPINNING FRAMES.

APPLICATION FILED AUG.22, I919.

Lqtwfiafio Patented Jan. 10,1922.

2 SHEETSSHEET l- H ammo;

T. G. BULLARD.

STOP MOTION FOR SPINNING FRAMES.

APPLICATION FILED AUG-22, 1919.

Patented Jam. 10, 1.922.,

2 SHEETSSHEET 2.

THOMAS GREAN BULLARD, OF ENTERPRISE, ALABAJEA.

STOP MOTION FOR, SPINNING FRAMES.

aaoaaee.

Application filed August 22, 1919.

To an whom it may concern:

Be it known that THOMAS Gm, BULLARD, a citizen of the United States ofAmerica, residing at Enterprise, in the county of Coffee and State ofAlabama, has invented new and useful Improvements in Stop Mo" tions forSpinning Frames, of which the following is a specification.

The object of the invention is to provide a simple, relativelyinexpensive and efiicient apparatus suitable for application to spinningframes of the ordinary and well-known constructions for stopping themachine by shifting the drive belt from the fixed to the loose pulleywhen the operation of winding the yarn upon the bobbins or quills hasbeen completed quills have been filled, to avoid the overfilling thereofor the superfluous winding of the same, and thus to avoid thedisadvantages of overrun bobbins and the loss incident to waste andtangled yarn resulting therefrom, and to this end the invention consistsin a construction and combination of parts of which a preferredembodiment is shown in the accompanying drawings, it being obvious thatchanges in form and proportion, in adapting the mechanism to spinningframes of different constructions may be resorted to, within the scopeof the appended claims without departing from the principles involved. I

In the drawing:

Figure 1 is a plan View of the apparatus applied in the operativeposition to a spinning frame.

Figure 2 is a detail view of the shipper arm.

Figure 3 is a similar view of the auxiliary shipper rod.

Figure 4; is a similar view of the trigger or latch.

Figure 5 is a similar view of the guide for the auxiliary shipper rod.

Figure 6 is a detail elevational View showing the end of the latch barand its relation to the ring rail and thread rail.

Figure 7 is a sectional view taken on the plane indicated by the line7-7 of Figure 6.

Those parts of an ordinary spinning frame in connection with which thestop motion contemplated by the invention cooperates and which aretherefore essential to an understanding of the invention are the ring orseparator blade rails 10, the thread rail 11, the main or ordinaryshipper rod 12 with Specification of Letters Patent.

or when said bobbins or- Patented Jan, 10, 1922,

Serial no. 319,255.

which is connected the belt shifting arm 13 and the fast and loose beltpulleys 14 and 15.

Suitably mounted for sliding movement in hearings in the frame 16 of themachine is an auxiliary shipper rod 17 extending at an intermediatepoint through a guide 18 which may be supported as indicated, from thethread rail 11 to which it may be secured by a screw 19, and carried bysaid auxiliary shipper rod is a shipper arm or follower 2O deflected orslotted as at 21 to engage the main shipper rod and contact with a stop22 thereon, said stop in the construction illustrated consisting of anelement of the main shipper rod, namely a coupling 23 which serves tocontrol the position of the stem 2-1 of the belt shifter arm withrelation to the body portion of the said shipper rod. It is obvious thatany other suitable form of stop may be used in this connection as ameans whereby motion of the shipper arm or follower 20 may becommunicated to the main shipper rod and hence to the belt shifter arm.

The means for impelling the auxiliary shipper rod in the direction tocause the shifting of the belt consists, in the constructionillustrated, of a coil spring 25 in surrounding relation to theauxiliary shipper rod and compressed between the arm 20 and the guide18, so that the action of the spring is to impel the auxiliary shipperrod in a direction away fromthe trigger or latch bar 26 which isterminally arranged in the path of upward movement of the separatorblade or ring rail 10 which normally engages a notch or seat 27 formed'in the auxiliary shipper rod. That the trigger bar 26 may readilyengage with or be readily disengaged from the notch or seat 27, it mustbe susceptible of movement in a vertical plane and such movement isimparted to it by the rising ring rail in the operation of laying theyarn on the spindles. which support the latch bar are formed withopenings 28 whose width is substantially the width of the latch bar andwhose height is sufficient to provide a slight upward or verticalmovement of the latch bar, pins 29 serving to preclude longitudinalmovement of the latch bar and thus ensuring it always being in aposition for engagement by the ring rail.

lVhen the mechanism is in operation and 110 yarn is being applied to thebobbins, the belt 4 to imbf course traverses the tight pulley For thisreason, the thread rails 11 the cotter cated in dotted lines in Figure1, the auxiliary shipper rod and its attendant parts being also in theposition indicated in the dotted lines in said figure. In such aposition, the notch 27 is disposed at a point where it is engaged by thelatch bar 26, the latter being maintained in contact with the seat bygravity. In such a position of the parts the spring 25 is undercompression and when the bobbins have been filled and the separatorblade or ring rail rises on the last beat or stroke of laying the yarnon the quills, it engages the projecting extremities of the latch bar,raising the same from engagement with the notch or seat 27, when thespring 25 is free to act and, through the shipper arm 20, impartslongitudinal movement to the stem 24 of the belt shifter, moving thesaid shifter to the full line position shown in Figure 1 when the beltis perforce transferred to the loose pulley and the mech anism comes torest.

It is obvious that an apparatus as described may be readily applied atsmall cost to any of the ordinary forms of spinning frames, and willserve as a positive means of preventing the overrunning of the bobbinsor quills and hence the waste and loss both in the matter of yarn andtime incident thereto.

What is claimed is:

1. In a stop motion for spinning frames, the combination of atransversely disposed trigger or latch bar spanning the frame andmounted for slight vertical movement but precluded from longitudinalmovement and having its extremities arranged in the path of movement ofthe ring rails, a belt shifter, and a spring actuated shipper rodoperatively engaged with said shifterand pro vided with a seat or notchfor engagement by said latehbar.

2. In a stop motion for spinning frames,

the combination' of a transversely disposed of movement of the ringrails, a belt shifter,

an auxiliary shipper rod, operative connections between the auxiliaryshipper rod and the belt shifter, and a spring operatively connectedwith the auxiliary shipper rod and tending to force the belt shifter to.a position guiding the belt .on to the idle or loose pulley of theframe, the auxiliary shipper rod being formed with a notch or seat forengagement by the latchbar to hold the auxiliary rodin a retractedposition whereby the belt shifter may be moved to guide the belt on tothe tight pulley of the frame, the said latch bar being disengageablefrom said notch or seat by the ring rails on the upward movement of thelatter.

3. In a stop motion for spinning frames. the combination with atransversely disposed latch bar spanning the frame and mounted in holesformed therein and extended in the direction of their length or heightto provide for slight upward movement of the latch bar, the latterhaving means to preclude its longitudinal movement .and having itsextremities arranged in the path of move-- ment of the ring rails, abelt shifter, an auxiliary shipper rod, a guide in which said auxiliaryshipper rod is slidably mounted,

A a shifter arm carried by said auxiliary shipper rod and operativelyengaged with the belt shifter, and a spring compressed between saidguideand said arm, the said spring being in surrounding relation to theauxiliary shipper rod and the latter being formed with a notch or seatfor engagement by said latch bar which is released from said notch uponthe upward movement of the ring rails as herein shown and specified.

In testimony whereof he affixes his signature.

THOMAS GREAN BULLARD;

